The game looks great! Especially the portal effects. I had some issues with the background music stopping during gameplay and I was able to place some towers despite having no currency. Other than that good work!

It's great to see more unreal games in the jam!  This is a fun tower defense game and seems like a lot of work in just 7 days! I lasted until wave 25.   Once I learned you could send the next wave before the previous one was done I was happy, that's a nice feature.  

I think what would improve this game the most is some clarity.  It needs some UI elements explaining the difference between each type of turret.  The range of them all seems the same, but there isn't much feedback on what makes them different besides ice slows.   A tiny bit of polish that will help a surprising amount is a little more variety in sound effects as well.  For sounds you'll hear very often you'll want to have multiple different sound effects if you can.  However even if you only have one you can vary it a little bit.  In the sound cue for you turret shot I'd add a modulator node.  There you can make it so the pitch varies a little bit every time it's played making even a single repeated sound effect nicer on the ears!  

Awesome job, I look forward to seeing more!

Fun game! I'm impressed that it was made in only a week.

Hee-ho. Nice game. Very cute art

Game fits the theme.
Would have loved some health bars to know when the enemies die.

What I liked: The game fits the theme of the jam well, the tutorial is clear

What I would improve: The game seemed quite complicated to me, it seems that one mistake in the placement of the turret and the wave will not be contained...

All in all, good work!